EN 549 Standard

The EN 549 standard covers rubber materials for seals and membranes used in gas appliances and gas installation accessories. It specifies requirements and associated methods for rubber materials used in gas installations, gas appliances, and gas equipment in contact with flammable gases of families 1, 2, and 3 as classified in EN 437:2018, including natural gas, biomethane, and biomethane-derived LPG of the same quality. The standard also defines classification based on temperature range and hardness for materials used in producing homogeneous seals and homogeneous or reinforced membranes. The EN 549 standard should be applied to rubber products with a working temperature range from -40 to +150 degrees Celsius. It does not apply to silicone rubber products operating at a nominal pressure above 200 hPa (200 mbar) or at temperatures below 0 degrees Celsius with gases from family 3 due to the potential for condensation. Products complying with this standard confirm that the elastomeric sealing materials meet the requirements for use in gas installations and appliances, with each product displaying information regarding the working temperature range. The BS EN 549:2019+A2:2024 standard specifies requirements for physical and chemical properties of rubber materials for sealing and membranes in contact with flammable gases, including natural gas and LPG. Compliance with this standard ensures the highest standards of safety, reliability, and performance. The updated version of the standard provides detailed information on elastomeric materials, including guidelines on mechanical strength, resistance to thermal aging, and gas permeation. Main advantages of using rubber materials compliant with the BS EN 549:2019+A2:2024 standard include gas permeation resistance, high sealing performance, dimensional stability, reliable durability under prolonged exposure to heat and chemicals. Power Rubber specializes in manufacturing high-quality seals and rubber products compliant with the BS EN 549:2019+A2:2024 standard, ensuring reliable sealing and minimizing gas leakage risks in gas installations. These professional rubber products, made from certified mixtures, are suitable for gas appliance manufacturers, gas system installers and service providers, HVAC industry firms, and industrial facilities using gas installations. If you need rubber products compliant with the EN 549 standard, feel free to contact us.